Terminal Descriptions - Kenwood TS-890S Instruction Manual

Terminal Descriptions

COM Connector
Pin No. Pin Name
1 NC No connection
2 RXD Sends serial data to PC.
3 TXD Receives serial data from PC.
4 NC No connection
5 GND Signal ground
6 NC No connection
Sends signal from the PC to this transceiver. If the PC is unable to accept incoming data, an "L" level
7 RTS
signal is output from the PC to this transceiver and data will not be sent in this case.
Sends signal from this transceiver to the PC. If this transceiver is unable to accept incoming data, an
8 CTS
"L" level signal is output from this transceiver to the PC and input of incoming data will be forbidden.
9 NC No connection
.
REMOTE Connector
Pin No. Pin Name
1 SPO Speaker out
2 COM Common terminal of the built-in relay for linear amplifier control
PTT input
3 SS
Sends signal by grounding the SS terminal.
Make terminal of the built-in relay for linear amplifier control
• The make terminal can be connected to the common terminal during transmission by configuring
4 MKE
Rated control capacity of relay contact: 2 A/ 30 V DC (resistance load)
Maximum allowable voltage of relay contact: 220 V DC, 250 V AC
Break terminal of the built-in relay for linear amplifier control
The break terminal can be connected with the common terminal when the latter is not connected to
5 BRK a make terminal.
Rated control capacity of relay contact: 2 A/ 30 V DC (resistance load)
Maximum allowable voltage of relay contact: 220 V DC, 250 V AC
6 ALC ALC input from the linear amplifier
Linear amplifier control output
• The output logic during transmission can be configured using "Keying Logic" of the linear amplifier
7 LKY "Active High": Outputs DC 12 V during transmission. The maximum output current is 100 mA.
"Active Low": Switches to the "L" level (GND and short) during transmission. When an external bias
is applied while receiving is in progress, the signal switches to the "H" level. Voltage and current not
higher than DC 50 V and 100 mA respectively can be controlled.
"Internal Relay Control" of the linear amplifier menu.
menu.
INSTALLATION AND CONNECTION 1
.
Function
GND：
Connect to metal shield.
Function
Input/Output
—
O
I
—
—
—
I
O
—
Input/Output
O
I/O
I
I/O
I/O
I
O
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